Mach-ine for refolding paper tu bes



(N0 M iel. 2 SheetsSheet. 2.

H. R. CORKHILL, Jr. MAGHINE'FOR EEFOLDING PAPER TUBES.

No. 605,053. PatentedMay 31,1898.

UNITED STATES PATENT Orrin;

HENRY R; CORKIIILL, J1}, OF ROCHESTER, NEW YORK.

MACH-lNE FOR REFOLDING PAPER TUBE3.

SPECIFICATION forming part of Letters Patent N0.6 05,053, dated May 31, 1888.

Original application filed April 1, 1895, Serial No. 544;,033." Divided and this application filed December 20, 1895. Serial liov 572,763. (No model.)

To all whmn it may concern:

Be itknown that I, HENRY R. CORKHILL,

I Jr. of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Machines for Refolding Paper Tubes; and I do hereby declare the following to be a f ull, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, and to the refercnce numerals and letters marked thereon.

. My present invent-ion has for its object to provide devices for refolding or breaking back the. paper tubes which constitute the oxterior'shells oi sliding paper boxes; and it consists in certain improvements iereinafter described, the novel features being pointed outinthe claimant the end of this specification.

In the drawings, Figure l is a view of the end of the tube before being refolded; Fig 9 a similar view'aftcr being" refolded- Fig.3 a'

side elevation of the refolding-die; Fig; 4, 21. plan view of the same; Figs. 5 to 18, sectional views taken through the various parts of the refoldingalie;

Similar refercncolctters and numerals in the several figures indicate similar parts.

In my prior patent, No. 551,937, dated February 1S, 1896, this being a division. of the application for said patent, I have described in detail a complete machine adapted to form the paper tubes or shells such as are adapted *to be operated upon by the herein-described apparatus.

The paper tubes are preferably of such length that several shells for slide-boxes may be out from'them, and in Fig. 1 I have shown such a tube as it is delivered to the machine, said tube being composed of a single piece or strip oil paper, cardboard, or similar material creased or'seored longitudinally on the lines B B and C G, forming the broad panels A and A and the narrow sides or panels l) and 1), the panels A and D being preferably united by the pasting-flap E or in any other suitable manner. L uring the operation. of forming this tube the blank has been bent or folded on the lines l5 l3, and it is the object of my present machine to bend or retold the blank upon thelines (l U, and in the present 0011-.

struction preferably back again, so that the tube is delivered flat and in the form shown in Fig. 1. The object of thus refolding or bending the tube is to facilitate itsbei set up into rectangular shape to permit the ready introduction of the slide or box it is to contain and to prevent breaking on other lines than those on which it is creased or scored for the purpose. In I ig.- 2 the blank is shown after it has been refolded or broken on. the creased lines 0 C on which it was not folded during the formation and pasting of thc't'ube, although it is preferably delivered from the machine in the form shown in Fi 1, being folded back into the shape into which it was delivered to the refolding mechanism.

The means shown. for turni the blank and bending it on thedincs GU n: a series of pairs of cylindrical rollers arran ed upon a suitable supporting plate or frauicji, preferably attached to the main frame of a co .n plete tube-forming machine, and l have indicated said rollers only diagrammaiieallythat is to say, their position and arrangement are shownbut for he sake of ciearuess the means for positively driving said rollers has been. omitted, though i ha e shown in Fig, ll. mechanism for driving one pair of rollers, 0011' sisting of driving-belts L, i ssing around pulleys 3, and'siniilar belts are c ipl ed for d riving each roller of all ol' the p; i suitable guide-rollers 4 on the frames 31) of the re ers being employed, when des red, to direct the belts from their driv' -pulieys to the driven pulleys on the rollc 4 The tube in the form shown in Fig. l is llO- liver-ed by suitable means, such as a eouvL lug-belt (3, between the first pair olf rollers 10, the succeeding pairs being indicated by ll 12, and so on up to and the positions of these rollers and the shape of the tube while passing between them are clearly shown in Figs. 5 to 18, inclusive, a detail description of the specilic construction and arrangement of these rollers 'not being necessary, as they in the shape shown in Fig. 2, ha. been v emti mg on the sides and ends, as shown, bend lines C 0, While the tellers 21, 22 2111623, Op-

it back again to the shape shown in Fig. 1,

and it is delivered from between rollers 23-10- an tsuitable receiving ,deviee,"as'a pair of bell-s 26.

The ebje faced rollers is to cause all portions of the SjIlIfELCQ of the rollers which act upon the tube to move at the same surface speed in order 7 'ison that tubesuwhieh hfv' wbeen' 'tirinted or,

r nh maybeQ eratednponhyfiheF r r gteting'surface without lialbili'tyof the freshly- The rolled-s from 10 to constitute, a die,

that there may be no wiping eetionion"the pm ntecl in water, as wonldvibe -the pause} rollers were conical. r

having movable wiillsjor'sidesyend o emting v seen to eontreet the tube gradually kitft 9 sides from the entrance endvof the aiegana wide1iing in edireet ion at right angles tothe sid and then grati'uully wideningQit in'Tthe dii tionJofthe SlfIlES of th'el'tdbe'" contracting in $1 ,direetionfa-t thereto, the shape of the die 'blei tube,-(see Figs; 5. m l 5,') -th'el s id gradually around theplnnp ffnal of. the die, and tit obi :Ll1e"sid proaeh or are elose together at the and grail uztlly separate, ,whil'e the iii-e separated and gradually apbiodh ntil the Gen ter of the-(lie is reaehed;wherethe'four sides form L substantially rectangular apei"- tui'e, uni than thetwo previously-bent y'liies 1' ate and the 't WOF pIOVi rated hides approach, es'sliow "1n Fi 1-5, at

ll I haveshown the t ube'o'n' shell asobin'ei-oss-seetion, it coul'cl'be ofothe'l'. mi form, if dezaired. 'llieserefolding-rollfiriven sit the same iufaiee speed, z-i-ufl I- final it desirable to make the roller-s14 and 1?,Wi1i0b engage the tube or ehellwllen nearly in rectangular form-#thati's',fjust Ibefore and after it is bent on the'cteasefl lines 0 C- h the grooves? 25,,the angles of the "howeve'ne little less des'of grooves'being,

men. the angles of thesidesioi the tubes, so that the corners of thetu bes Will not be crushed, but the sides will, be engaged j ashort distance from the corners, as 'cl'eai-ly; shown in Figs. 9 and. 12. This oon'atrutioni I find to be advantageous, pertiularlyof-th'e rollers 1'7, because the blanks are to be bent on. the lines C C- at this puiufl' and-"extrenie pressm'e would be liable to erush' th corner's of the tubes.

- It desirable, although not essential that the tubes after being folded-onee,'as'in -Fig.- 2,'be i'ei'oldefi again on the creased-Muesli]; to the shape shown in Fig. 1, and theuriollere and 23 could be dispensed With,- the; blanks being delivered to suitafbleifeedingout devices or a receptacle inthisshape; but

is better to bend the tu-besbuek; u as the creased linel e (J1, and the tube ean'be set up t of employing cylindrical plain-lx 7 u t, the sides .of the die halving been g1 ven a listli tu in on the longitndinalaxi;

tu iinztlly near 1 opposite edges,-

byhancl 'e'asierfo'r the reeeptionof the boxes 01' slides. 'Itwill be notecl't-hat this refolding .devicelis particularly adapted for operating 1170 on long tubes, which are subsequently to becut upinto sections the-length of cigarette- .boxeg; and WhilefI-pre'fer thjttithe' space between the mum 10 and 20.be approximately the length 0f,,the tube o'be operated upon this 'is not essentialj I v The'feature of employing movable sides for the refolding-die'is advantageous, for the reaprinted surface being marred or smeared, as would 11511180359: were adie with stationary isiclesemployed" Icim as my As, 3/ t- 1 dboai dg previofu "2,? Ash'fneans for refolding .a' fiat tu'be'bf 'ardljoard-; preiriouslyeidsedlongitudin'ztlly,'

so-f plaiin fa'c'ed c driveuiollo'rswi-th disposed at various angles' iiiiial'a/iis, 's2 iddie changing 'fr'oln' approxihen rectangube angles're' vetsed, then approximately-La ne; and-a; Se-

axes of rotati 1 jries of other cylindrical driven r'ollefs having their surfaces approximately at rightengles to the lougex a-xis'of thelestrhom'boiditl sh ape of tlie'die,"foi flattening the blank to first p0 sitiofn,substantially as described;

As a meane-fQr'refoldingfi at tube of calrclboard'previously creased longitudinally; a; dieoom'posed ofa'series'of ,plainfacel 'cylindrical positively-driven rollers withtheir "axes ofrotation disposedat variousuangles around the longitudinal axis of the-die, said;- die changing gi'ztduallyin'shape fromappioxi- 'm'ately a line rhoinboidztl; when meetazigw :lar'; thon iholnboi dal fagaiu with the :angles rev rsed then aipprmeim linegandiwo pairs of rollersinterme'd ate r, .le'ngth-ofthe l dle having grooves formed therein, the walls of which :m'e ait 1 :a' lesser 'englelthan ther p fx0 and gies to the plane of the exit I fbuimoyixg sides; mmmsga r plainced eylindriczfi rollers,lwi'h the; if axesd irotation I I disposed at; varioiis angles to and. extending mpre widely'sepalrated than those of the s0-.

0ndpair,-th Whole arranged and operating ngular form, then gradually aroundthelbngitudixial @xi's' of 1116' e, two of said'lsides at. th entr'zmceibeiqg to bend th'itube in recta ose togethg 1am t-WQ- separated, zmd. the ased lines, and.

'0 s epara fle'5-gmd ia11y approaching v I .jgzindfim awn 103a tag-ether gradually sepaentered thed substantially-as describedrat-inu am. -heie'is at ictangula'r' form j l thQ-iwwo pr evieuslyaeparatd ones v HENRY apprmwn: anti-the two formerly close togetbelg' Witnesses: sepm'ateagai'n' tQ naflnalwidth, Mid twopja ir F. F. CHURCH,

G. A. RODA. K

' of rriilswitah flieixi axes'in a, plane approxig f 11; is hlerekycertifie'q thatalgtters .Iatehi; Nojaospss, grantd-if y 31,- 1898 upn V 'fZ SHfPPhZBIU IOII fat Him-y l i li k rkh ill, in, pf Bbhester, New for 511 ixfirov- .(l3flrk;fi1lx11 Machmes for Refolmg liaper T111595 were rroneously issued ,|;@\i 6 Z I, be an gfiia towner of the sand znventlon; v v he reas said Letters Patent shoul'd-hm re t H I o the Slacker Lltkographw Opmpqny of same place, Bald company being ovhler 1: cflithe en11 e mberest, a5 hown by the record of assignments 1n the ofiice Also th 1- tile Serial No" of the original application af the head of the s pei'fimfio: ;:.(;1:c:.lre a:?hif,032, instrzfad 0f 54:1,033f ah fi, that @he said Lettgrs Pate nc should E sigz ned, qmlntersigned, and B8|Zd t-hllf'l'th day of J un, A. D.,' 1898.

g EAL WEBSTER. DAVIS, Gmmtmsigne: Assistant Secretary qf the Interiar. f H. DUELL,

Cmnmiam'oner of Patents.

injately at ri ght ah I e rolls of the first pair being 15 fiattqn' it,fbndilig it; on the ore arm in which it 20 v Co rection in Letters Patent No. 605,053.

It is hereby cenified phat-Letters Patent No. 605,053, granted May 31, 1895, upon the application of Henry R. Corkhill, in, of Rochester, New York, for an improvement in "Machines for Refolding Paper Tubes," were erroneously issued to said Corkhill as owner of the said invention; whereas been issued to the Stacker Lithographic Company, of same place said company being owner of the entire interest, as shown by the record of assignments in this oflice: Also, that the Serial No. of the original application printed at the head of the specification should read 544,082, instead of 544,033; and that the said Letters Pateutfihould be read with these correctioue,therein that thasame may conform to the record of the one in the Patent Oflice. I

Signed, countersigned, and reeled this 7th (in of June, A. D., 1898.

(SEAL) WEBSTER DAVIS,

Assistant Secretary of the Inferior. Couuiersigue C. H. DUELL,

Commissioner of Patents.

said Letters Patent should have 

